main()
{int x;
 float y;
 x=1;
 y=3.1415
 while(x<5)
  { if( x%2==0)
      y=x+1;
	else
	  y=x+2;
    x=x+1;
  }
  printf("x=%d\n",x);
  printf("y=%f\n",y);
}
